const app = getApp()
Page({
    data: {
        windowHeight:''
    },
    onLoad: function () {
        this.setNavSize()
    },
    setNavSize(){
        var that = this,
            sysinfo = wx.getSystemInfoSync(),
            statusHeight = sysinfo.statusBarHeight,
            isiOS = sysinfo.system.indexOf('iOS') > -1,
            navHeight;
        if (!isiOS) {
            navHeight = 48;
        } else {
            navHeight = 44;
        }
        that.setData({
            status: statusHeight,
            navHeight: navHeight
        })
        this.getSystemInfo()
    },
    getSystemInfo(){
        let that = this;
        // 获取系统信息
        wx.getSystemInfo({
             success:  (res) => {
                this.data.windowHeight = res.windowHeight *2 -168;
                that.setData({
                    windowHeight:this.data.windowHeight,
                });
            }
        });

    },
    postSave(e) {
        wx.showLoading({
            title: '保存中...'
        })
        wx.downloadFile({
            url: 'https://rzico.oss-cn-shenzhen.aliyuncs.com/pay/contractSigning.png',
            success: function (res) {
                //图片保存到本地
                wx.saveImageToPhotosAlbum({
                    filePath: res.tempFilePath,
                    success: function (data) {
                        wx.hideLoading()
                        wx.showModal({
                            title: '提示',
                            content: '您的推广海报已存入手机相册，赶快分享给好友吧',
                            showCancel:false,
                        })
                    },
                    fail: function (err) {
                        if (err.errMsg === "saveImageToPhotosAlbum:fail:auth denied" || err.errMsg === "saveImageToPhotosAlbum:fail auth deny") {
                            // 这边微信做过调整，必须要在按钮中触发，因此需要在弹框回调中进行调用
                            wx.showModal({
                                title: '提示',
                                content: '需要您授权保存相册',
                                showCancel: false,
                                success:modalSuccess=>{
                                    wx.openSetting({
                                        success(settingdata) {
                                            console.log("settingdata", settingdata)
                                            if (settingdata.authSetting['scope.writePhotosAlbum']) {
                                                wx.showModal({
                                                    title: '提示',
                                                    content: '获取权限成功,再次点击图片即可保存',
                                                    showCancel: false,
                                                })
                                            } else {
                                                wx.showModal({
                                                    title: '提示',
                                                    content: '获取权限失败，将无法保存到相册哦~',
                                                    showCancel: false,
                                                })
                                            }
                                        },
                                        fail(failData) {
                                            console.log("failData",failData)
                                        },
                                        complete(finishData) {
                                            console.log("finishData", finishData)
                                        }
                                    })
                                }
                            })
                        }
                    },
                    complete(res) {
                        wx.hideLoading()
                    }
                })
            }
        })
    }
})
